Dave Dalzell served as Chairman of the Texas Association of Realtors in 2004, Chairman of the Real Estate Research Center at Texas A & M University in 2008-2009, President of the Abilene Association of Realtors in 1986 and currently serves as President-Elec for 2013. He was Regional Vice president of the National Association of Realtors in 2007, Chairman of the West Central Texas Work Force Board in 2009-2010, and has served in many other leadership roles for his church, community, local, state and national professional organizations. He is a graduate of the Abilene Christian University with a Bachelor degree in Psychology and minor in Mass Communications. He has extensive graduate work in Management and Human Relations and has earned his CRB, CRS, and GRI Realtor designations.

Dave was active in radio broadcasting before entering the real estate business. He was Program Director, Operations Manager and Creative Writer for 10 years. At the time he left radio, his morning drive Talk Show and after noon drive DJ program were among the highest audience rated shows in the nation.

Dave owned Dalzell Advertising, a full-service agency, for 12 years, and was a partner in an insurance firm. He started in the real estate business in 1977, was named Salesperson of the year in 1978 and REALTOR of the year in 1988 by the Abilene Association of Realtors. He was named one of the top 10 honorees for the "Good Neighbor" National Association Of Realtors in 2008 and the first ever "Texas Hero" award from the Texas Association of Realtors in 2009 for his outstanding Charitable and community service work.

Dave has served in numerous offices and committees for his local Realtor association, the Texas Association of Realtors and National Association of Realtors. He served 3 terms as a TAR Regional Vice-President, President of the Texas chapter of Certified Residential Brokerage Managers in 1985, 6 years as TAR-PAC Trustee, 9 years as NAR National Director , and on the NAR Executive Committee in 2007,2012 and 2013. He has served numerous years on both the Legislative Management team and Executive Committee for TAR, on the FannieMae Southwest Advisory Council and the Texas Real Estate Commission Education Sub-Committee. Dave was appointed by Governor Rick Perry to the Advisory Board of the Real Estate Research Center at Texas A&M University and the Board of Directors of the West Central Texas Workforce Board. He has served as the Chairman of the NAR Federal Housing Policy Committee, Housing Opportunity Committee and currently serves as Vice-Chair of the Public Policy Coordinating Committee.

Dave taught real estate for 5 years at Cisco college, 12 years at Abilene Christian University and since 1986 has been a senior instructor for the REALTOR Institute of TAR. Dave owns and manages Dalzell Realtors, a full service brokerage and property management company with 2 offices in Abilene,Texas.